D1122211211331313331323221123313233313231323112113313232313232321   >>    D112221121133131333132322112331323331323132311211331323231323232   <<    D1122211211331313331323221123313233313231323112113313232313232323   >>      D1122211211331313331323221123313233313231323112113313232313232322   >>